# F&F BIS-411BM Bistable Relay with Manual Control Button and Memory, DIN Rail Mount, 230V

**URL:** https://aio.lv/en/product--ff-bis-411bm--12448158
**Data updated:** 2026-05-18 02:46 (EEST)
**Category:** Home Automation
**Manufacturer:** FF
**Manufacturer code:** BIS-411BM
**EAN:** 5902431674056
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 33.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 27.68 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-bis-411bm--12448158

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The F&F BIS-411BM is a bistable relay designed for lighting and electrical circuit control. It features a built-in manual control button and memory function, ensuring the state is retained after power loss. Designed for standard DIN rail mounting, this 230V relay provides reliable switching for various automation applications, allowing for convenient local control of connected loads in residential or industrial electrical installations.

## Long description

The F&F BIS-411BM is a bistable relay engineered for the efficient control of lighting and electrical circuits. This device allows for the switching of connected loads from multiple locations using parallel-connected momentary push-buttons. Equipped with a built-in manual control button and a memory function, the relay ensures that the current state of the circuit is retained even after a power supply interruption, providing consistent operation in various electrical installations.
Advantages
The primary benefit of this bistable relay is its versatility in managing electrical loads through simple impulse signals. The integrated memory function eliminates the need for manual resetting after power outages, which enhances convenience and reliability. Furthermore, the inclusion of a manual control button directly on the housing allows for immediate local operation, making it an ideal solution for both residential and industrial automation systems that require robust and flexible switching capabilities.
Suitable for
Lighting control in hallways and staircases
Managing electrical circuits from multiple remote points
Industrial automation systems requiring state retention
Residential smart home electrical installations
When it may not be suitable
This relay is not designed for high-power industrial motors or loads that exceed the specified current rating. It is also not intended for applications requiring complex programmable logic or dimming functions, as it operates strictly as a binary switching device.
Key specifications
Supply voltage: 230V AC
Mounting type: DIN rail (TH-35)
Control input: Momentary push-buttons
Memory function: Retains state after power loss
Manual control: Integrated button on the device
How to use
The relay is designed for installation on a standard 35mm DIN rail within an electrical distribution board. Connect the phase and neutral wires to the designated terminals according to the wiring diagram. Connect the momentary push-buttons in parallel to the control input terminals. Once installed, a short press on any connected push-button or the manual button on the relay will toggle the output state between on and off.
What to consider before purchase
Ensure the total load current does not exceed the relay's maximum switching capacity
Verify that the control circuit is compatible with 230V AC signals
Confirm that the installation space allows for DIN rail mounting
Usage recommendations
For optimal performance and safety, ensure all electrical connections are tightened securely and the device is installed by a qualified professional in accordance with local electrical regulations.

## FAQ

### How much does the F&F BIS-411BM Bistable Relay for DIN Rail cost, and is it available for purchase?

The price is 33.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All FF products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FF service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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